Ladder for silos.



W. ROSS.

LADDER FOR SILOS.

APPLICATION FILED MAY 22. 1915 1,174,289. Patented Mar. 7,1916.

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WITNESSES lNl/E/VTOR f fig WfiZZer if 0J6,

A%MQ Z I ATTORNEY.

rm; COLUMBIA PLANUORAPH C0., WASHINGTON. D. c.

T FIG IWALTE'R ROSS, or KANSAS CITY, MISSOURI.

LADDER FOR sIL os.

Application filed May 22,1915. Serial No. 29,780.

To all whom it may concern:

Be it known that I, WALTER Ross, a citizen of the United States, residing at Kansas City, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Ladders for Silos, of which the following is a specification.

My invention relates to improvements in silos, and in general embodies a silo constructed of wood, metal and cement, placed in a pit foundation, so that it can be easily filled, and also to protect the silage from variable weather conditions, such as extreme heat in summer and zero weather in winter.

The interior construction of the silo is such that no metal, paint, creosote, cement tiles, or other material likely to injure the silage can come into direct contact therewith.

Other features of the invention will hereinafter appear, and in order that the invention may be readily understood, reference will now be made to the accompanying drawing, in which:

Figure 1 is a broken side elevation, partly in section, of a silo constructed in accordance with my invention. Fig. 2 is a plan view of the silo. Fig. 3 is a broken elevation of a ladder arranged within the silo. Fig. 4 is a section on line IV of Fig. 3. Fig. 5 is a detail elevation partly in section of apparatus for removing silage from the silo.

In constructing the body of the silo, I employ a wooden cylindrical shell 1, the lower edge of which is mortised into a wooden floor 2, as indicated at 3.

The floor 2 and the shell 1 are incased in a concrete or cement jacket 4, which extends a short distance above the surface of the ground A. Said jacket 4 prevents water from seeping into the shell 1 and protects the latter from direct contact with the pit foundation 5 in which it is set.

The shell 1 is covered by a metallic conical roof 6, provided at its apex with a ventilator 7 and firmly secured to the top of said shell 1 by a circular angle plate 8.

9 designates a door for normally closing an opening 10 through which access is had to the interior of the silo, said opening being a short distance above the surface of the ground, so that the silage can be readily placed in the silo. y

11 designates a ladder arranged within the silo and extending from the opening 10 to within a short distance of the silo floor 42, so

i Specification of Letters Patent.

7 Patented Mar. a, rare.

that access can be readily had to the lower portion of the silo for the purpose of remov- 1 in the silage therefrom.

he ladder 11 consists of a pair of upright timbers l2 and rungs 13. One end of each rung fits into a notch 14: in one of the timbers 12, while the opposite end of each rung fits into a groove 15 of such configuration as to permit the rung to be swung. upward to the dotted position disclosed by Fig. 3. This arrangement permits the rungs 13 to be removed before the silo is filled, so that they will not catch and thus prevent a portion of the silage from settling down into compact form. When the silage is removed from time to time the rungs 13 are placed in position as required, so that a person can readily descend to the top of the silage. The rungs 13 are held in the notches 14L and the grooves 15, so thatthey will not pull out beneath the weight of a person, by strips 16 secured to the timbers 12.

The silage is removed from the silo with buckets 17- and cables 18, which latter run over sheaves 19 suspended from a metal strap 20, riveted or otherwise secured to the interior side of the silo top 6. By employing a plurality of buckets 17 trips down into the silo can be reduced to a minimum, as all of the buckets can be filled on one trip and then hoisted to the opening 10 after the op erator ascends to the top of the ground.

From the foregoing description, it is apparent that I have produced a silo in which the silage may be kept in goo-d condition indefinitely, and while I have shown and described the preferred form of the invention, I reserve the right to make such changes in .theconstruction, combination and arrangement of parts as properly fall within the spirit and scope of the claim.

. Having thus described my invention, what I claim and desire to secure by Letters Patent is: Y

I A ladder for silos composed of rungs and a pair of spaced vertical'members one of which latter has notches extending through its front and inner side faces and the other of which has similar'notches but of a length relatively greater than that of the first named notches, each of said notches providing outer end walls for engagement with the respective ends of the rungs to thereby hold the latter against endwise movement, and each also providing a bottom wall to support the respective ends of the rungs against downward movement, and strips nailed to than the length of the notches so as to leave the front faces of the vertical members to the front sides of the notches at the outer close the front sides of the notches to pre-' ends thereof in free and open communication vent outward movement of the rung ends, with the interior of the silo. V

5 said rungs being loosely placed in the notches In testimony whereof I afliX my signature, :5

and bodily disengageable from each of the in the presence of two Witnesses.

notches and said strips being common to all WALTER ROSS. of the notches of the respective members and Witnesses: being located adjacent the inner sides of the HAROLD E. WHEELOCK,

10 vertical members and being of less width F. G. FISCHER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

1 Washington. D. C. 

